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• Tips for encoding a live stream to IIS Media Services (or Azure Live Media Services) with FFMPEG ?

  6 mars 2014, par user3104748

  We're trying to encode assets, either live or static, in a live stream to IIS Media Services using ffmpeg. Can anyone provide pointers for exactly what kinds of parameters we should be using and setting ?

  As part of our test, just to see if we can get things to work, we have a standard plain-old MP4 video static asset that we're trying to stream to the server. It seems to work on the client side, but when we try to view the video on the receiving end, we get nothing.

  Here's an example of the command we're using, where gg.mp4 is the static MP4 video (obviously (hostname) is the name of our host and not the actual word in parenthesis :)...

  ffmpeg -y -re -i gg.mp4 -movflags isml+frag_keyframe -f ismv -threads 0 -c:a libvo_aacenc -ac 2 -b:a 64k -c:v libx264 -preset fast -profile:v baseline -g 48 -keyint_min 48 -map 0:v -b:v:0 477k -s:v:0 368x152 -map 0:v -b:v:1 331k -s:v:1 288x120 -map 0:v -b:v:2 230k -s:v:2 224x92 -map 0:a:0 http://(hostname)/ingest.isml/Streams(video)

• How to use ffmpeg with h.265 (or h.264) coded ?

  8 mai 2015, par randomuser1

  Normally I start recording the camera image with the command :

  ffmpeg -y -f vfwcap -r 25 -i 0 OUT.mp4

  but I’m not sure which coded do I use in here (I’m just beginning my adventure with ffmpeg), however I found on this webpage this command :

  ffmpeg -i INPUT -c:a copy -x265-params crf=25 OUT.mov

  But when I run it - I get the following error :
  INPUT: No such file or directory"

  I changed the INPUT word above also to 0, so the command is

  ffmpeg -i 0 -c:a copy -x265-params crf=25 OUT.mov,
  but error stays similar (0: no such file or directory).
  How can I grab the camera image and save it to a file while using the H.265 ?

• avcodec/mlpenc : Avoid redundant temporary PutBitContext

  25 mars 2021, par Andreas Rheinhardt

  avcodec/mlpenc : Avoid redundant temporary PutBitContext
  We are already word-aligned here, so one can just as well flush the main
  
  PutBitContext.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavcodec/mlpenc.c